Improvement in machines for elevating grain



corn-mills or granaries. its application to thrashing-machines.

UNITED STATES PATENT OFFICE.

JOHN BRUfcKsHAW, or OAKLEY, HENRY BnUcKsnAW, OE INIARKET DRAY- TON, AND WILLIAM soOTT .UNDERHILL, oF NEWPORT, ENGLAND. A

lIMPIEOVIEMIEINI'I' IN MACHINES FOR ELEvA-I'ING GRAIN.

Specication forming part of Letters Patent No. 33,634, dated November 5, 1861.

.To aZZ wzfm it may concern.-

Be it known that We, JOHN BRU CKSHAW, of

' Oakley, in the county of Staord, and HENRY BRUoKsHAW, of Market Drayton, in the county of Salop, engineers, and W'ILLIAM SCOTT UNDERHILL, of Newport, inthe same county, England, manufacturer, all subjects of Her Britannie Majesty, have invented Improvements in Machinery for Elevatin g Grain Our invention consists in the employment of a revolving fan for the purpose of elevating or raising grain, and this fan is applicable to thrashing-machines, granaries, corn--` mills, warehouses, and for any other like purposes in which grain is required to be raised. In the drawings, Sheet A represents in section one mode of applying our Ainventionto Sheet B illustrates We will now proceed to describe the working of our invention first in its application invention to a thrashing-machine.

to corn-mills, granaries, Warehouses, or other stores in which it may be requisite frequently to shift and separate the grain for the purpose of cleaning it and to prevent overheating.

`The drawings, Sheet A, represent sections of a granary of three floors in height, in which a a a? b b b2 are the garners.

C is a tube running from the top floor to the fan D on the ground-floor and discharging itself into thehopper E. Duets c c2 lead from each garner into the same tube C, thus allowingthe contents ofeach garner to pass I througl'fthe fan D, or the downtubeC may bythe action of the fan and blasts thrown violently up a second tube f, of larger sectional area than the tube C, out of the spout G of which tube f it is ejected into the garner a. The port or trap H at the bottom of the garner a being closed, the operation would result in simply removing the grain from the bottom iioor to the top one; but if 'it be desired to lill all the garners the ports H H in the respective garners a a would be opened, when the grain would descend through them into the lowest garner CL2/until that garner was filled. The port H would then be closed and the garner a allowed to fill, when the same operation would be repeated for the top garner. The head of the tube f with its spout G' is capable of revolving similar to a cowl to admit of its filling gamers in any position around it,and ifa mill `or granary contain more than three iioors it is only necessary 'to let the tubes C and f pass through them all,

the action of the fan when driven at ahigl velocity being sufficient to throw the grain t( a height considerably greater than that of any ordinary mill or granary.

Sheet B illustrates the application of our a, is the main frame of the machine; B, the case of the fan with the fliers or blades C fixed on the fanshaft E O't' the first Win'nowing-mac-hine, or in any other more convenient position. D is a hopper into which the grain is fed by a vibrating spout.v The grain being thus supplied to the fan is by the action of the fan thrown violently up against the Wire grating on, thus breaking the smut and taking off the White heads. The smut, being forced through the wire grating m, falls out at the aperture n.' The rest of the grain is thrown up the tube G and into a receiver or hopper H. vThe heavier grain or grain of the best sample falls into the compartment L. The lighter grain, following the, direction of the arrows, falls into another compartment L', the `lightest grain being driven into a third compartment L2 along with the heavier refuse. At the same time the lighter refuse `makes its escape through the trap K. From the receiver or hopper H the grain falls through spouts l in each compartment into sacks, or into a' seelevel to mother by means of a bla-st and fan,

ond dressing-machine, if requisite.

Having t-hus described the nature of our said invention andthe manner in which the same is to 'be performed, We Wish it to be understood that, without limiting ourselves to these precise details, that which we claim is- The elevatingr or raising grain from one as herein more fully set forth and specified.

JOHN BRUCKSHAW.

HENRY BRUCKSHAW. W. S. UNDERI-IILL. Witnesses:

J. M. G. UNDERHILL, EDWARD J. PAYNE. 

